There are several ways used internationally to assess a person’s imagination, cognitive activity, attentiveness, and logical thinking. While mathematics tests and puzzles are routinely used to examine logical reasoning, visual tests are frequently employed to measure brain activity, especially in the context of brain aging. These assessments frequently include visual puzzles.

Consider when someone applied for a driver’s license and had to take a vision test, which included a color blindness check. Assessing brain aging uses a similar approach to these ophthalmological procedures, but with several distinctions. For example, in 18th-century France, a set of pictorial exams was devised to assess brain age. The first figure depicts a simple test, with 99% of participants finding the correct answer, regardless of age.

The assignment: Locate the hidden bottle in the image. We believe you will have no trouble locating the bottle because it is pretty large and its contour is easily visible at first glance. However, the test becomes increasingly harder as it goes. Many people struggle with these kind of assessments, finding it difficult to concentrate and abstract their thoughts.

In this photograph, a young man approaches a bench where someone has placed a box. According to the original puzzle, the box contains a bottle of wine. We don’t know if that’s true. We do know that the actual owner of the box is nearby. Can you identify the owner of the box in this photo?